-LRB- CNN -RRB- A 30-year-old California woman was abducted from a male acquaintance 's residence in the Bay Area and is being held for ransom , police said Tuesday .

The male acquaintance , also 30 , witnessed the kidnapping of Denise Louise Huskins from the Vallejo home , and he is not a suspect in the case , said Vallejo Police Lt. Kenny Park .

`` Ms. Huskins ' whereabouts are unknown , and we are treating this matter as a kidnap for ransom , '' Park told reporters . `` We 're worried about Ms. Huskins ' welfare . We do n't know where she 's at . And that 's why we 're coming to the public asking for their help . ''

Huskins , who has been living in Vallejo the past year , is from Huntington Beach in Southern California , police said . She works as a physical therapist , police added . She is employed at a Kaiser Hospital , CNN affiliate KGO reported , citing her Facebook page .

A cousin of Huskins , Amy Mattison , told CNN affiliate KPIX that the 30-year-old man is Huskins ' boyfriend and she was abducted from his residence .

Park declined to comment on the nature of the relationship between Huskins and the 30-year-old man who saw and reported the kidnapping .

About 75 people from the Solano County Search and Rescue Team were searching for Huskins in nearby woods and on Mare Island , Park said .

Huskins ' 2000 White Toyota Camry was found in Vallejo and may have been moved from the residence , Park said . Authorities do n't know when her vehicle was moved , police said .

Park did n't disclose the amount of the ransom being sought .

`` All I can tell is there was a ransom demand , '' Park said .

Police are asking the public 's help in locating Huskins , who was described as white , 5-foot-7 , 150 pounds , with blond hair and blue eyes .

Vallejo police asked the FBI to help their investigation .

CNN 's Stella Chan contributed to this report .

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Denise Huskins , 30 , works as a physical therapist at a Kaiser Hospital , CNN affiliate KGO reports

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Huskins was taken from her boyfriend 's residence , her cousin tells CNN affiliate KPIX